(19)

(11)

EP 0 820 236 A1

(12)

(43) Date of publication: 28.01.1998 Bulletin 1998/05 (21) Application number: 96910594.0 (22) Date of filing: 02.04.1996

(51) International Patent Classification (IPC):  A23C 3/ 02( . ) A23L 3/ 18( . ) A61L 2/ 06( . ) A23C 3/ 037( . ) A23L 3/ 22( . ) (86) International application number: PCT/US1996/004166 (87) International publication number: WO 1996/032020 (17.10.1996 Gazette 1996/46)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 11.04.1995 US 19950420833 (71) Applicant: Dasi Corporation Rockville, MD 20852 (US)	(72) Inventors: NAHRA, John, E. Rockville, MD 20852 (US) ZIMMER, Artur, M. Columbia, MD 21044 (US) (74) Representative: UEXKÜLL & STOLBERG  Patentanwälte Beselerstrasse 4 22607 Hamburg 22607 Hamburg (DE)